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ACUS11 KWNS 110142
SWOMCD
SPC MCD 110141=20
TNZ000-KYZ000-MOZ000-ARZ000-110245-
Mesoscale Discussion 1992
NWS Storm Prediction Center Norman OK
0741 PM CST Fri Dec 10 2021
Areas affected...Northeast Arkansas...southern Missouri...northwest Tennessee...and southwest Kentucky.
Concerning...Tornado Watch 552...
Valid 110141Z - 110245Z
The severe weather threat for Tornado Watch 552 continues.
SUMMARY...A strong to potentially violent tornado is ongoing in far northeastern Arkansas and is expected to persist.
DISCUSSION...A mature and very strong supercell in northeast
Arkansas is currently producing a very strong to potentially violent
tornado. The downstream airmass remains very favorable with
dewpoints near 70, strengthening/backing surface flow, and 0-1 km
SRH in excess of 400 m2/s2 per KNQA VWP. This is yielding STP around
5. Given the favorable downstream environment with no convection to
disrupt this storm, expect the significant tornado threat to
continue for at least a few more hours as this discrete, long-track
supercell continues northeast.
..Bentley/Grams.. 12/11/2021
...Please see
https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!rE99q2JwbrxKDPd3GyQjcitmfyOTMvIR2Faw1jp7KxzXyJI46oKNik49cb4ZVKy5I0KCDVoa$=
for graphic product...
ATTN...WFO...PAH...MEG...
LAT...LON 35868917 35859018 35999035 36209014 36588927 36708865
36608832 36378812 36258832 35868917=20
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